To improve the safety of tap water, a study was conducted on the introduction of sanitation safety certification system for water treatment plants(WTPs). In order to produce and supply safe tap, the inflow of pollutants should be blocked as much as possible during the tap water production process, and contaminated materials should be removed or inactivated to a safe level in the WTPs. In order to block the inflow of pollutants in WTPs, it is necessary to strengthen the sanitation management such as installation of facilities for preventing inflow and habitat of larvae, and to remove or inactivate pollutants in the tap water production process, strengthening the safety management such as enhanced turbidity management is needed. Sanitation and safety management in the WTPs can be significantly improved by introducing certification system of WTPs. This will induce continuous improvement in water purification plants with insufficient sanitation and safety management, and provide incentives for WTPs with good sanitation and safety management. In addition, when the WTPs sanitation and safety certification system is established, it is desirable to expand the proposed system from WTPs to the entire process of tap water production and supply.

The paint removal of fighter jets is just as important as the painting, because perfect paint removal ensures the quality of the exterior painting on the aircraft. However, the current conditions for paint removal work of the ROKAF’s are poor. It is identified that the painting process currently implemented by the ROKAF is not only exposed to harmful compounds such as harmful dust and hexavalent chromium, but also consumes a lot of water. Thus, the introduction of advanced facility is considered. This study compares the fighter jets painting removal process currently applied by the Korean Air Force with the improved laser coating removal process of the US Air Force, and conducts an incremental analysis to perform economic analysis for the introduction of advanced facility. Four scenarios were envisioned on the premise of an increase in the number of fighters in the future, incremental analysis shows that laser coating removal method is advantageous in all scenarios. In addition, it is recommended that paint removal cycle keeps the current 12-year and the outsourcing amount to civilian depot is reduced.

연안오염총량관리제는 지자체에 오염물질부하량을 할당하고, 오염부하 삭감뿐만 아니라 바람직한 지역발전에 있어서 아주 중 요하다. 본 연구에서는 광양만특별관리해역의 총량관리 도입에 앞서 해역으로 유입하는 오염물질의 유입부하와 광양만 해역의 수질상태 를 조사하였고, 현재 연안오염총량관리를 실시하고 있는 다른 해역의 장기적인 현황을 살펴보았으며, 수회에 걸쳐 광양만 특별관리해역 환경자문위원회의 의견을 수렴하였다. 그 결과, 광양만에도 총량관리의 필요성이 인정되었으나, 시행에 앞서 우선 COD, TN, TP, 중금속, PAHs의 지속적인 모니터링과 함께 총량관리 도입의 경제성과 효율성과 같은 타당성 검토가 이루어져야 할 것으로 판단되었다.

Untreated waste is temporarily stored on the site of the nuclear power plant. In some nuclear power plants, saturation period of temporary storage waste is less than 10 years away. As untreated waste continues to be generated in nuclear power plants, it could also affect management of operations. Accordingly, CRI is developing the 3.5 generation plasma torch melting facility for waste treatment. The 3.5th generation plasma torch melting facility consists of melter, plasma torch, waste supply device, exhaust gas treatment facility, power supply, etc. Melter is composed of melting chamber for melting control and pyrolysis chamber for waste pretreatment, and dam-type discharge device is adopted to overflow the melt. Plasma torch is hollow type with reversed discharge, has a rating of megawatt class, and has two gas supply lines. It can be used in transfer mode, non-transfer mode and mixed mode. There are three types of device for waste supply. The first is a drum pusher for injecting 200 L drums, the second is a screw-type waste supply and hopper for injecting solid waste, and the third is a nozzle-type waste supply device for injecting liquid waste. Exhaust gas treatment facility was equipped with post combustion chamber, off-gas cooler, high-temperature filter, HEPA filter, reheater, scrubber, ID fan and etc. Power supply of plasma torch operation is designed with a capacity of 1.5 megawatt (Maximum) and consists of channels A and B. Transfer mode, non-transfer mode and mixing mode of plasma torch may be selected through the control of PLC. This paper introduces the composition and function of the 3.5th generation plasma torch melting facility of CRI. In order to solve the problems arising through the operation of the 3rd generation plasma torch melting facility, an optimization plan is applied.

Numerous spent nuclear fuels are generated every year in Korea. To solve the spent nuclear fuel problem within saturated temporary storage, the authorities are readying to build an interim storage and a permanent disposal facility in the country. At the same time, the authorities are readying to establish a management procedure for spent nuclear fuel. In the future, the authorities need to make and apply the Database of spent nuclear fuel to practice the management procedure. However, the structure of a traditional database is not reasonable for information management because it has a problem with listing data and identifying data features due to its structure. In addition, the traditional database always exists human error from working in Excel program by a human. Therefore, this research proposes a new standard information management model based on Semantic Web technique. Semantic Web uses a data structure named ontology. By using the ontology in the information database of the spent nuclear fuel, users, such as institutions related to management, could more easily recognize and understand the Database. Furthermore, since this task proceeds in the ontology construction program, the human error in the new model reduces rather than an environment of the traditional database.

Protected agriculture has great potential for the vegetable industry in the Philippines as it allows the application of modern cultivation techniques to mitigate adverse weather conditions and enable farmers to manage pests and diseases efficiently. Thus, to address the increasing demand for food in the Philippines, one strategy to increase vegetable production which is tested and/or proven is through the intensified use of protective structures. This review describes the magnitude and potential of agriculture in the Philippines, focusing on the protected cultivation of horticultural crops. The Philippines is far behind in greenhouse technologies compared to other Asian countries where thousands to millions of hectares are used for protected vegetable cultivation. Several studies have investigated the economic viability and applicability of low- and high-cost protective structures in typhoon-prone countries such as the Philippines, demonstrating that protective structures are feasible and profitable. Also, the impact of protected cultivation as compared to the open field has resulted in significantly higher yield and better quality of produce. Hence, the Philippine government with the assistance of the Republic of Korea agreed to improve the country’s flagging vegetable industry and endeavor to attain the status of a food-secure country through the establishment of smart greenhouse technologies. Overall, despite the limitations due to the high cost of electricity and construction protected cultivation facilities including required technologies provide greater advantages for seasonal and off-seasonal vegetable crop production compared to that in the open field. Moreover, such technology can be applied to various geographical locations such as plains, hills, deserts, rural, and urban areas.

세월호 참사 이후 연안여객선 안전증진을 위하여 관련 법령의 정비, 운항관리자 제도 혁신 등 다양한 물적 인적 규제의 강화와 재정적 지원제도가 마련되 었다. 그러나 이러한 많은 제도적 개선과 재정적 지원 결정에도 불구하고 연안 여객선의 안전운항은 보장되지 않고 있다. 이 연구는 연안여객선의 안전운항을 보장하기 위한 하나의 유력한 방안을 모색하기 위하여 수행하였다. 연구의 결 과 “연안여객선 안전공영제 도입의 필요성은 있다.”라는 결론을 도출하였다. 이 연구에서 제안하는 안전공영제는 연안여객선을 이용하는 ‘국민의 안전을 증진’하고 ‘국민의 이동권을 증진’하기 위하여 국가가 그 비용의 일부 또는 전 부를 부담 또는 지원하는 제도이다. 안전공영제를 위해서는 별도의 특별법을 제정하는 것이 필요하다. 그 이유는 첫째, 개별법령들을 조금씩 고쳐 근거 규정을 만드는 경우 입법목적이 정확하게 드러나지 못하고 결국 현실에서는 제대로 작동하지 못할 가능성이 크다. 특별법 을 통해 ‘안전공영제’의 입법 취지와 목적을 분명하게 선언하는 과정이 필요하다. 둘째, ‘안전공영제’는 정확한 정의가 필요한 개념이 많다. ‘안전’, ‘안전공영제’, ‘안전비용’ 등의 개념은 사회학적으로 그 의미가 설명될 수 있지만, 법률적으로 는 정확한 개념의 정의가 필요한 용어이다. 따라서, 기존 해운법, 항만법 등에 서 별도의 용어 정리를 하지 않는 이상 개별 조문에 갑작스럽게 등장하게 되면 제대로 해석되지 못하거나, 시행령이나 시행규칙에서 협소하게 축소될 위험도 크다. 특히, 예산을 수반하는 항목의 경우에는 법에서 그 대상 범위를 분명하게 정하지 않으면 사실상 무의미한 개념이 될 가능성이 크다. 별도의 특별법에서 개념 정의를 분명하게 할 필요가 있다. 셋째, 4.16 세월호 참사에 대한 진지한 성찰과 개인의 안전할 권리를 보장하 는 국가의 헌법상 의무가 강조된 최근 헌법 개정 논의의 연장선에서, 국가의 구성요소인 국회와 정부가 국민의 안전보장 의지를 대내외적으로 분명하게 선 언하고, 나아가 안전한 사회를 위한 국가의 책임을 충실하게 이행한다는 것을 보다 분명하게 한다는 관점에서도 개별법 개정보다는 연안여객선 ‘안전공영제’ 도입을 위한 특별법 제정이 타당한 방안이라고 생각한다. 이 제도를 시행하는데 소요되는 예산은 연간 약 241억 원이다. 안전한 연안 여객운송 체계를 만들어 단 한 건의 대형 연안여객선 참사를 막을 수 있다면 그만한 충분한 가치가 있다는 점에서 연안여객선 안전공영제 등은 반드시 추진 되고 실천되어야 할 과제이다. 오늘날 국민의 안전권을 확보하는 일은 국가의 책무 중에서도 가장 우선되어야 할 위치에 있는 역할로서 인식되고 있는 만큼, 연안여객선의 안전운항 증 진을 위한 연안여객선의 안전공영제 도입과 그 시행을 위하여 소요되는 국가의 재정적 지원은 세월호 참사에 대한 국가의 책무를 이행한다는 측면에서 그 의 의가 있다고 생각한다.